| commit | 43f54c8d2e3bddfc6ad7887286eb6564986cb6ad | [log] [tgz] |
|---|---|---|
| author | Michael Pratt <mpratt@google.com> | Thu Sep 06 17:21:59 2018 -0700 |
| committer | Ian Lance Taylor <iant@golang.org> | Fri Sep 07 22:50:28 2018 +0000 |
| tree | 4883ebc958846178fbcf544e44d22a6599b42be6 | |
| parent | ceb7745cc846f798531ef019162dd9f1dabfea12 [diff] |
runtime: use tgkill for raise raise uses tkill to send a signal to the current thread. For this use, tgkill is functionally equivalent to tkill expect that it also takes the pid as the first argument. Using tgkill makes it simpler to run a Go program in a strict sandbox. With kill and tgkill, the sandbox policy (e.g., seccomp) can prevent the program from sending signals to other processes by checking that the first argument == getpid(). With tkill, the policy must whitelist all tids in the process, which is effectively impossible given Go's dynamic thread creation. Fixes #27548 Change-Id: I8ed282ef1f7215b02ef46de144493e36454029ea Reviewed-on: https://go-review.googlesource.com/133975 Run-TryBot: Michael Pratt <mpratt@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
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